Canon FAX-L1000 - Manual (Page 313)

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FAX-L1000 Chapter 4: Maintenance and Service
##0675 [RX] The protocol did not move from phase 3 to phase 4 and a T1
time-out occurred during V.34 reception.
Cause: The transmitter disconnected the line during phase 3 or the signal from the
transmitter was not able to be detected.
Solution: Increase #2 MENU No.07 transmission level within a range of
-8~-15 (dBm) or set #1 SSSW SW-28 bit 1 to "1" to inhibit the V.8/V.34
protocol on termination.